Re: Porting waveforms out of Mathematica and into a D/A converter
- To: mathgroup at smc.vnet.net
- Subject: [mg75365] Re: Porting waveforms out of Mathematica and into a D/A converter
- From: AeRobert <do.not at reply.nonet>
- Date: Fri, 27 Apr 2007 05:18:40 -0400 (EDT)
- Organization: University Of Oxford, England
- References: <f0pkr5$27t$1@smc.vnet.net>
hot water wrote: > Porting waveforms out of Mathematica and into a D/A converter > > I have an application where I want to take mathematical curves > generated in Mathematica and port them into a D/A converter. I would > use regular signal generators but that will take a very long time for > my medical ultrasound application. > > Any suggestions? What frequency? The most easily available D/A convertor is the sound output of your Computer Mathematica already has functions set up for that, but of course the bandwidth is limited - to 20kHz (for a good sound card, less for typical built in ones). For higher frequencies you will need to get a specific D/A device, which come as PC cards and USB devices. There's several suppliers who's usual focus is "data acquisition" so use that as a search term. They usually provide some basic sofware that allows you to test all the functions of the card, but rarely in a user friendly or extensive way - so you will probably need to consider the whole system of hardware & software. (Amplicon might be a firm to start with and then, once you have the jargon, search engine for more) I'm assuming you intend to generate a string of nummbers describing a wave form in Mathematica - they could be exported to a file in any format you fancy - then "played" out to a sounder. My experience is getting dated - I can do this kind of stuff working in MS-DOS environments - there are perfectly good compilers to write the necessary software freely available in the public domain. Robert Oxford, UK robert-dot-paynter-at-virgin-dot-net